Rapid online detection apparatus and detection method for water body bacterial microorganisms

Abstract

The present invention discloses a rapid online detection apparatus and a detection method for water body bacterial microorganisms. According to the present invention, based on optical scattering and absorption characteristics of bacterial microorganisms, a double-wavelength laser diode is adopted as a light source, an optical fiber array distributed in a spherical space is adopted as an optical signal receiving device, and CCD is adopted as an optical signal detector to research rapid online detection methods and systems for bacterial microorganisms in environmental water bodies, wherein a set of rapid online detection sample machine for water body bacterial microorganisms is developed, and rapid recognition detection on water body bacterial microorganisms is effectively achieved in the laboratory; and the method has characteristics of simple operation, no requirement of sample culture and pretreatment, rapid detection and high sensitivity, can be provided for achieving continuous, online and real time monitoring and classification of bacterial and microorganisms in the water body, and is suitable for rapid online detection of bacterial microorganisms in the nature water body, and complete and continuous monitoring pre-warning of bacterial microorganisms in the drinking water source water body.

Description

technical field [0001] The invention relates to the field of water body detection systems, in particular to a rapid on-line detection device and method for water body bacteria and microorganisms. Background technique [0002] According to a survey by the United Nations Environment Program: 80% of the world's diseases are caused by drinking water pollution, and 50% of children's deaths are caused by polluted drinking water. Polluted water sources are the single largest cause of human disease and death. [0003] Drinking water safety is a prominent environmental problem facing our country, which is directly related to the lives and health of the people. From 1986 to 2005, there were 152 drinking water pollution accidents in our country, and the pollution type was mainly biological pollution, far higher than the proportion of chemical pollution, accounting for 69.1%; nearly half of the accidents occurred in residential areas, with water pollution as the main Mainly, accounting...

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Problems solved by technology

[0004] Existing testing methods mainly include petri dish method, enzyme method, immune method, genetic method, etc., which are intermittent and random sample collection and time-consuming laboratory analysis. The detection method has many steps, long detection process, and low detection sensitivity. The detection procedure requires bacterial culture for a period of time, and it takes several hours or days to obtain the detection results, which cannot realize continuous, on-line, real-time monitoring and classification of harmful microorganisms in water; because random sample collection can only provide The water quality situation in a static location cannot achieve comprehensive and continuous water quality early warning, nor can it achieve rapid water quality monitoring and timely response processing

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